A new basis for an international poverty measurement is proposed based on linear programming for specifying the least cost diet and explicit budgeting for non-food spending. This approach is superior to the World Bank’s '$-a-day' line because it is (1) clearly related to survival and well...

While the decarbonization of the electricity sector is proceeding globally with the ongoing increase of wind and solar generation, reducing the carbon footprint of other sectors such as industry, transportation, and agriculture proves more challenging. One reason is the challenge of electrifying...

We develop and implement methods for determining whether relaxing sparsity constraints on portfolios improves the investment opportunity set for risk-averse investors. We formulate a new estimation procedure for sparse second-order stochastic spanning based on a greedy algorithm and Linear...

This paper is concerned with inference about an unidentified linear function, L(g), where the function g satisfies the relation Y=g(X)+U; E(U |W)=0. In this relation, Y is the dependent variable, X is a possibly endogenous explanatory variable, W is an instrument for X and U is an unobserved...